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  <script>
    let obj = {
      name: '刘德华',
      sing: function (gequ) {
        return `我会唱${gequ}`
      },
      sayHi: function () {
        return '打嘎猴,窝嘿搂得娃'
      },
      dance: function () {
        return '我会跳舞'
      }
    }
    document.write()
  </script>
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